Granted Patent
Utility
US 4,316,139 · App. 06/048,093
Method and apparatus for determining the location of an arc in a waveguide transmission line or the like
Inventor:
Errol L. Root
Patented Case
View Patent ↗
Granted: Feb 16, 1982
Filed: Jun 13, 1979
Inventor
Errol L. Root
Assignee (at issue)
International Telephone and Telegraph Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.